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Unethical practices in the South African construction industry

- Aigbavboa, Clinton, Oke, Ayodeji, Tyali, Sibiwe

  • Authors: Aigbavboa, Clinton , Oke, Ayodeji , Tyali, Sibiwe
  • Date: 2016
  • Subjects: Construction , Corruption , Ethics
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/215531 , uj:21429 , Citation: Aigbavboa, C., Oke, A & Tyali, S. 2016. Unethical practices in the South African construction industry.
  • Description: Abstract: Development of infrastructure to meet the needs of South Africans is a major concern for the construction industry, however the failure of the industry to keep up with the expectation has drawn some criticism from the citizens. Lack of adherence to ethical practices that help ensure transparency and accountability within the industry is a major impediment towards being a consistent and an effective contributor to the growth of the South African economy. This study therefore examines unethical practices in South African Construction Industry and measures to address the menace for better project performance. Well-structured questionnaires were administered on registered and experienced construction professionals within the industry and Mean Item Score (MIS) was used to analyse the returned data. Non-adherence to ethical practices in the industry are as a result of greed, favouritism, political influence, monopoly of bigger companies over smaller and emerging companies and pressure to meet unrealistic company objective and deadlines. The unethical practices prevalent in the industry include bribery and fraud, falsification of experience, illegal award of tenders and collusive tendering. These unethical practices result to dissatisfied clients, poor workmanship, poor quality of infrastructural development and loss of public trust. Professionals, especially construction and project managers should shoulder the responsibility of stamping out unethical practices in the industry by developing viable measures to achieve the goal. More so, whistle-blower protection mechanisms need to be revised and improved to encourage effective monitoring and sanctioning of individuals involved in unethical practices in the industry.
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Understanding the determinants of students’ choice of occupancy for creative construction

- Kobue, Tidimalo, Oke, Ayodeji, Aigbavboa, Clinton

  • Authors: Kobue, Tidimalo , Oke, Ayodeji , Aigbavboa, Clinton
  • Date: 2017
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/246057 , uj:25500 , Citation: Kobue, T., Oke, A. & Aigbavboa, C. 2007. Understanding the determinants of students’ choice of occupancy for creative construction. Procedia Engineering, 196 (2017) 423–428. Creative Construction Conference 2017, CCC 2017, 19-22 June 2017, Primosten, Croatia.
  • Description: Abstract: Opportunities for creativity and innovation are always factors that need to be considered when it comes to student accommodation since students are clients in any form of accommodation provided. The study was undertaken to evaluate the factors that affect students’ choice of occupancy in privately owned residences in a South African higher education institution as well as provide insight to housing providers on what factors to give attention to and improve. Students always look for residences that are within a walking distance to campus, meaning it should be close to campus, secure, within a friendly environment or location and have unlimited internet service for academic reasons. The study used primary data obtained through the survey method with the use of structured close-ended questionnaires which were distributed to students living in a privately owned residence. Convenience sampling was used with 55 questionnaires distributed and 50 were returned and worthy to be analysed. Literature was used to obtain factors that were utilised for data collection. Overall, student housing providers including private housing providers should take caution on the factors that affect students choice of occupancy in privately owned residences, thus consider what influences and attracts students to stay in privately owned residences and implement creative and innovative initiatives to better the residences. This study will help accommodation providers (existing and new developments) to enhance residences, attract more occupants without compromising their needs.
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Understanding construction projects schedule overruns in South Africa

- Mukuka, Mulenga, Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Mukuka, Mulenga , Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2015
  • Language: English
  • Type: Article
  • Identifier: http://hdl.handle.net/10210/68434 , uj:17733 , Citation: Mukuka, M., Aigbavboa, C. & Thwala, W. 2015. Understanding construction projects schedule overruns in South Africa
  • Description: Abstract: Construction schedule overruns are not uncommon on construction projects world over and the South African construction industry has not escaped the challenges of failing to deliver projects on time. In order to find mitigation measures of schedule overruns, the first step is to identify the causes of these overruns. Therefore, this paper assesses the causes of construction projects schedule overruns in the South African construction industry, a case of the Gauteng Province. The data used in this paper were derived from both primary and secondary sources. The secondary data was collected via a detailed review of related literature. The primary data was collected through a well-structured questionnaire which was distributed to construction professionals, who include: Architects, quantity surveyors, civil engineers, construction mangers and project managers. Out of the 200 questionnaires sent out, 146 were received back representing a 73% response rate. Data received from the questionnaires was analysed using descriptive statistics procedures. Findings from the study revealed that slowness in decision making process, reworks due to errors during construction, delay in approving major changes in the scope of work, delay in material delivery, shortage of skilled equipment operators, low productivity level of workers, delay in obtaining permits from municipalities and workers risky behaviour on sites were the major causes of construction projects schedule overruns in Gauteng, South Africa. The study contributes to the body of knowledge on the subject of the causes of construction project schedule overruns in Gauteng, South Africa.
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Understanding Building Information Modelling in the South Africa construction industry

- Kekana, Geroge, Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Kekana, Geroge , Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2015
  • Subjects: Building Information Modelling , BIM adoption , BIM barriers
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/73329 , uj:18395 , Citation: Kekana, G., Aigbavboa, C. & Thwala, W. 2015. Understanding Building Information Modelling in the South Africa construction industry.
  • Description: Abstract: Building Information Modelling (BIM) is a concept that has been defined as a technology that digitally constructs an accurate virtual model of a building. BIM can be defined as an IT enabled approach that involves the application and maintenance of a fundamental digital representation of a building and all its information throughout the different stages of the project. The model of the building, which will be in 3D, will depict the exact dimensions of the building. The study assesses the barriers to the adoption and implementation of BIM within the South African construction industry, and suggests ways of overcoming the identified barriers to the full adoption and implementation of BIM in the South African construction industry. The data used in this paper was derived from primary and secondary sources. The primary data being questionnaires, was designed based on the related literature that was reviewed. The questionnaire was distributed to construction professionals such as Construction Project Managers, Architects, Quantity Surveyors, Construction Managers, Facility Managers, or academics who have previously done research on BIM in the South African construction industry. The questionnaires were analysed using descriptive statistical procedures. The findings revealed that a lack of skills, education, and knowledge on BIM are the biggest barriers to the full implementation of BIM in South Africa. Furthermore, the results also show that educational and skill development initiatives are widely considered to being the answer to the existing barriers to BIM adoption. As well as, establishing feasible ways of moving away from the common practice into using BIM on all construction projects.
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The role of public private partnership in improving service delivery in South Africa

- Mashwama, Nokulunga, Thwala, Wellington Didibhuku, Aigbavboa, Clinton

  • Authors: Mashwama, Nokulunga , Thwala, Wellington Didibhuku , Aigbavboa, Clinton
  • Date: 2018
  • Subjects: Infrastructure , Public-private partnerships , Service delivery
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/289391 , uj:31399 , Citation: Mashwama, N., Thwala, D. & Aigbavboa, C. 2018. The role of public private partnership in improving service delivery in South Africa.
  • Description: Abstract: South Africa is confronted with huge infrastructure service delivery backlogs, which has a negative impact on the country’s economic growth and improvement of the lives of its citizens. The infrastructural backlog cannot be sufficiently addressed by government alone, as it requires a collaborative effort from both the public (government) and private (business) sectors. The study examined the contribution made by Private Public Partnerships (PPPs) in delivering infrastructure projects. The data used for the study were derived from both primary and secondary sources. The secondary sources were review of literature and primary data were obtained through the use of structured questionnaires which were distributed to construction stakeholders in the public and private sectors, who were involved in the PPP’s projects in South Africa in the Gauteng province. A total of 90 questionnaire were distributed and 80 came back and used for the study. The study revealed that: PPPs speed up the infrastructural projects; completes the infrastructure projects much quicker than the traditional method; PPP increase the effectiveness of projects; completes work on time or even ahead of schedule; greater cost transparency; cost savings; reduction of life-cycle maintenance costs; reduction of the service delivery backlog, etc. The research has revealed that the projects delivered through PPP are of great quality and they are maintained well.
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The role of beneficiaries’ participation in South Africa low-income housing occupants’ satisfaction

- Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2013
  • Subjects: Low-income housing - South Africa
  • Type: Article
  • Identifier: http://ujcontent.uj.ac.za8080/10210/365641 , uj:4865 , http://hdl.handle.net/10210/12541
  • Description: The purpose of this paper is to present findings from an investigation conducted in South Africa subsidised low-income housing, on how beneficiary’s participation could influence residents’ satisfaction with their houses. The study was conducted amongst South Africa housing practitioners’ and the low-income housing occupants’. Data used in the study was obtained from a Delphi and field questionnaire study. Using Structural Equation Modelling software EQS, the influence of beneficiaries’ participation was investigated. The finding was that beneficiary participation influence on the residents’ satisfaction was statistically significant and hence exacted a direct influence in the prediction of the residents’ satisfaction with their houses. The research was conducted in South Africa three metropolitan and one district municipalities. Therefore due to the idiosyncratic dataset used in the study, it remains to be seen if the evaluated relationships between beneficiary participation and residents’ satisfaction can replicate to other cross-cultural datasets. If this is the case, the paper makes a significant contribution towards understanding residential satisfaction on subsidised low-income housing projects. This study provided significant insight into how beneficiary participation influence residents’ satisfaction and how residents’ satisfaction with their houses could be improved.
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The impacts of variation orders on South Africa public sector construction projects

- Ngwepe, Lusca, Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Ngwepe, Lusca , Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2015
  • Subjects: Variation order , Prevalence , Public construction projects
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/73610 , uj:18431 , Citation: Ngwepe, L., Aigbavboa, C. & Thwala, W. 2015. The impacts of variation orders on South Africa public sector construction projects.
  • Description: Abstract: The complexity, uncertainty, long-duration and the involvement of the sequential tasks and relationships of participants in/of the construction projects render this category of projects prone to variations along their progress. Variations create extra work, time, and money for the construction projects and they vary from one project to another. This paper investigates the impacts of variation orders on public sector projects in South Africa. To achieve the objectives of the study, a critical review of literature was done coupled with questionnaire survey to collect information on possible impacts of variations on the public projects in SA. Through the review of literature 7 major possible impacts of variation orders were identified which provided the basis for the formulation of the questionnaire. The questionnaire was distributed to professionals who work for companies that undertake public construction projects in South Africa. Targeted number of respondents was 50; however a total number of 70 questionnaires were sent out to make up for the cases were respondents did not return questionnaires. Overall, 50 questionnaires were returned and after a careful examination of the received questionnaires only 39 were usable. These formed the basis of the analysis for the study, since it accounts for 78% of the initial sample. Findings revealed that variation orders have major impact on i) time overruns, ii) cost overruns, iii) quality standard enhanced, iv) disputes amongst parties to the contract, and v) productivity degradation, iv) complaints of one or more parties to the contract. It was further noted from the results that variation orders rarely affected health and safety aspect of the public construction projects since all the factors relating to health and safety were the lowest ranked; health and safety degradation, additional health and safety officials, additional health and safety equipment. However, this results are in disagreement with the results on the critical determinants of variation orders on SA public sector construction projects because health and safety conditions was ranked the highest reason for variation orders under other related reasons for variation orders. What these findings mean is that safety considerations may be the reason to cause variation orders but variation orders do not affect health and safety on the construction project.
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The degree of importance that built environment postgraduate students attaches to specific library services: A South Africa higher education case study

- Seema, Katlane, Aigbavboa, Clinton

  • Authors: Seema, Katlane , Aigbavboa, Clinton
  • Date: 2016
  • Subjects: Libraries , Library resources , Library services , Postgraduate research , Research productivity
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/93912 , uj:20407 , Citation: Seema, K. & Aigbavboa, C. 2016. The degree of importance that built environment postgraduate students attaches to specific library services: A South Africa higher education case study.
  • Description: Abstract: Over 10, 000 students register each year for various postgraduate (PG) degrees across institutions in South Africa with majority of the students relying on the resources that the host universities libraries offers. This paper assesses the degree of importance that the Built Environment Postgraduate Students in a South African higher education attach to specific library services when undertaking their Postgraduate studies. The data used in this research were derived from both primary and secondary sources. The primary data were collected via an online questionnaire that was sent out to Built Environment Postgraduate students who include: Postgraduate diploma degrees, Masters, doctoral and post-doctoral students). Out of the 500 questionnaires that were sent out, an 82% response rate was achieved, representing a total of 410 collected questionnaires. The questionnaires were analyzed using descriptive statistic procedures. Findings from the questionnaire survey revealed that research commons, learning commons, archives and the online databases were what the PG students attached the most importance as contributory to their studies. The study does not only contribute to the body of knowledge regarding the degree of importance that built environment students attaches to library services but also assist with an understanding of the factors that higher institutions need to focus on when updating services in their Postgraduate Learning Centers; the library.
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Sustainable construction practices challenges - a stakeholders perspective

- Mashwama, Nokulunga, Thwala, Wellington Didibhuku, Aigbavboa, Clinton

Structural equation modelling of building quality constructs as a predictor of satisfaction in subsidised low-income housing

- Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2014
  • Subjects: Building quality features , Structural equation modelling , Residential satisfaction - South Africa , Low-income housing - South Africa
  • Type: Article
  • Identifier: uj:4833 , http://hdl.handle.net/10210/12434
  • Description: Residents’ satisfaction with the building quality and housing condition features has received an increasing recognition as a significant factor which influences the occupants’ satisfaction with their housing units. This paper reports the use of Structural Equation Modelling technique to test the influence of building quality features as a predictor of residents’ satisfaction. The study was conducted amongst South Africa housing practitioners’ and the low-income housing occupants’. Data used in the study were obtained from a Delphi and field questionnaire study. Primary data were collected by a face-to-face administered questionnaire survey conducted among 751 low-income housing residents’ in three metropolitan and one district municipality in the Gauteng Province of South Africa. Data gathered via the questionnaire survey were analysed using structural equation modelling (SEM) which was used to assess the factorial structure of the constructs. Using Structural Equation Modelling software - EQS version 6.2, the factorial structure, reliability and validity of building quality features indicator variables were investigated. The statistical results support the research hypothesised positive relationship that building quality feature has a direct influence in predicting residents’ satisfaction with their houses. Also, the influence of building quality feature on residents’ satisfaction was statistically significant. Further SEM analysis revealed that the Rho and the Cronbach’s alpha coefficients of internal consistency were over 0.70 criterions for acceptability, and the constructs shows a good mode fit to the sample data. The Z-statistics analysis also revealed that the constructs have direct influence in determining low-income residents’ satisfaction with their houses. The result advocates a practical consideration of these construct in future development of subsidised low-income housing in South Africa.
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Stepping into industry reality : reviewing the roles of cooperative education and internships in fostering construction education

- Aliu, John, Aigbavboa, Clinton

  • Authors: Aliu, John , Aigbavboa, Clinton
  • Date: 2017
  • Subjects: Internship , Construction education , Cooperative education
  • Language: English
  • Type: Article
  • Identifier: http://hdl.handle.net/10210/247598 , uj:25713 , Citation: Aliu, J. & Aigbavboa, C. 2017. Stepping into industry reality : reviewing the roles of cooperative education and internships in fostering construction education. Socioeconomica, 6(11):43-60. DOI: dx.doi.org/10.12803/SJSECO.61103.
  • Description: Abstract: The foremost aim of construction education is to equip students adequately to function effectively in the construction industry after graduation. Considering the present-day challenges and complexities of the industry, there is an increased need for graduates who do not only possess a sound academic background, but also the necessary work experience. Transition from classroom into full-time industry activities is never an easy ride for students, necessitating the need for work experience to ease the shock of transition. In light of leveraging students to handle the various demands of the present day construction industry competently, this article discusses the benefits of cooperative education and internships in fostering construction education for the future. An extant review of literature was conducted from journals, articles from databases such as Taylor and Francis Online, Springer, Emerald, ASCE, Scopus, and ASC conference proceedings, amongst others. One of the primary findings emanating from the study revealed that cooperative education provides necessary work experience which helps students experience an easy transition from the academic world to the complexity of the world of work. This work experience provides a capstone experience for students which reinforces and expounds on the theories learnt in classrooms and further improves their holistic development. With the dynamic and unpredictable nature of the present day construction industry, it is essential for students to have a résumé that includes actual industry exposure which gives them an added advantage. Hence, the findings of this paper provide a foundation to increase effective HEIs pedagogical work practices to better prepare graduates ahead of taking up positions in the construction industry.
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Stakeholders’ and sustainability considerations for mega infrastructure projects : a case of Accra airport city project, Ghana

- Eyiah-Botwe, Emmanuel, Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Eyiah-Botwe, Emmanuel , Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2015
  • Subjects: Airport City Project
  • Language: English
  • Type: Article
  • Identifier: http://hdl.handle.net/10210/67675 , uj:17631 , Citation: Eyiah-Botwe, E., Aigbavboa, C. & Thwala, W. 2015. Stakeholders’ and sustainability considerations for mega infrastructure projects : a case of Accra airport city project, Ghana.
  • Description: Abstract: Studies have revealed that stakeholder management and sustainable principles consideration are essentials for mega construction project success. The aim of this paper was necessitated by the fact that though there is stakeholder dissatisfaction and lack of studies on the sustainability of the Aiport City Project (ACP) Accra, there is a proposal for second phase development. This paper evaluates stakeholders’ and sustainability measures considered for the ACP’s long term sustainability. A mixed method approach and purposive sampling was adopted. The 70% quantitative survey response rate was validated using six (6) semi-structured interviews and data analysed using a descriptive survey method. Key findings indicate that peer review of designs, project stakeholder meetings, project approval in principles and development monitoring were the measures instituted for stakeholder and sustainability considerations rather than the entire stakeholder management process. The research concludes that the ACP is only medium term sustainable due to low level stakeholder consideration, services infrastructure development, high vehicular traffic congestion, high rental values, socio-economic and cultural factors which are challenges for long term project sustainability.
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Stakeholder engagement and participation in monitoring and evaluation of construction projects in Ghana.

- Tengan, Callistus, Aigbavboa, Clinton

  • Authors: Tengan, Callistus , Aigbavboa, Clinton
  • Date: 2016
  • Subjects: Stakeholders participation , Local government , Monitoring and evaluation
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/124004 , uj:20862 , Citation: Tengan, C. & Aigbavboa, C. 2016. Stakeholder engagement and participation in monitoring and evaluation of construction projects in Ghana.
  • Description: Abstract: Globally, the construction industry is acknowledged to be complex in its activities and processes. The need for transparency in monitoring and evaluation to promote both external and internal accountability in construction project delivery cannot be overemphasized, hence stakeholders engagement and participation. This paper reports on the level of stakeholder engagement in project delivery and participation in monitoring and evaluation of public construction projects in Ghana. Both structured interview guide and questionnaire schedule were used to collect relevant data for the study. A desk review of journal articles, conference proceedings, published and unpublished thesis work from the institutions’ database and internet sources relevant the study was adopted to underpin the study. Project implementation minutes and meeting attendance were also perused. Data was descriptively analyzed. Six key stakeholders were identified in local government project delivery in Ghana. It was evident from the study that there was a high level of stakeholder engagement in project delivery whiles participation of stakeholders in monitoring and evaluation of public projects at the local government level was very poor...
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Small and medium-sized enterprises contractors' health and safety performance

- Mustapha, Zakari, Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Mustapha, Zakari , Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2016
  • Subjects: Small business , Health and safety
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/213934 , uj:21215 , Citation: Mustapha, Z., Aigbavboa, C & Thwala, W.D. 2016. Small and medium-sized enterprises contractors' health and safety performance
  • Description: Abstract: Small and Medium Sized-Enterprise (SMEs) contractors form the bulk, by number, of companies in each industry. SMEs differ significantly from large firms, and these factors affect their compliance level. The study aims to assess the SMEs contractors Health and Safety (H&S) performance in the construction industry. Delphi survey was used for the study. Experts were asked to rate the impact of other factors in predicting SMEs contractors compliance with H&S regulations in Ghana. The rating were based on either the impact was considered to be very high or high. Microsoft EXCEL to analyse the data collected. The output from the analysis was a set of descriptive statistics such as means, median, standard deviations and derivatives of these statistics. The findings from the study shows that changes in company structure, changes in ownership at various stages of growth, lack of H&S experts and short track records of H&S regulations were rated by the experts among the factors that affect the SMEs contractors H&S performance.
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Site meeting as a sustainable construction tool

- Oke, Ayodeji, Mavimbele, Bhekisia, Aigbavboa, Clinton

  • Authors: Oke, Ayodeji , Mavimbele, Bhekisia , Aigbavboa, Clinton
  • Date: 2016
  • Subjects: Claims , Conflict , Dispute
  • Language: English
  • Type: Article
  • Identifier: http://hdl.handle.net/10210/214352 , uj:21270 , Citation: Oke, A., Mavimbele, B & Aigbavboa, C. 2016. Site meeting as a sustainable construction tool.
  • Description: Abstract: Site meeting is one of the oldest - and current way of managing problems emanating from construction projects and enforcing acceptable standard. This study therefore examined the use of site meetings in addressing the level of occurrence of construction problems and challenges thereby ensuring sustainability of construction projects. Data were collected through questionnaires administered on construction professionals with relevant experience in Switzerland. Site meeting helps to enforce quality standards such as developing a project quality control plan, assess workmanship during construction, increases communication in the construction team, assess the specification used and requires a competent construction manager. In ensuring that construction projects are sustainable, adequate site meetings will ensure that protective clothing, glasses and other wears are used by workers and all stakeholders on construction site, ensure team building, ensures skilled and qualified workers are used on sites; ensure tight but realistic targets are set and ensure that there is a health and safety officer on site. In view of this, site meeting should no longer be perceived as just a routine construction exercise but a great tool for enhancing smooth and acceptable standard for construction process. Competent and experienced project managers should also be appointed by clients, owners and financiers of construction projects for proper coordination of site meetings.
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Satisfaction level with neighbourhoods in low-income housing : a case study of Johannesburg, South Africa

- Aigbavboa, Clinton, Thwala, Wellington Didibhuku

  • Authors: Aigbavboa, Clinton , Thwala, Wellington Didibhuku
  • Date: 2012
  • Subjects: Residential satisfaction , Neighbourhood , Low-income housing - South Africa - Gauteng
  • Type: Article
  • Identifier: uj:4687 , ISSN 978-0-620-54069-8 , http://hdl.handle.net/10210/10472
  • Description: For the past 17 years, the South Africa government has been providing housing schemes for the low-income and disadvantaged group. These low-income housing schemes have not, however, been holistically evaluated. Based on a post occupancy evaluation protocol of occupant survey of low-income housing scheme in Johannesburg, South Africa, the article presents the beneficiaries’ judgement and assessment of the environment in which they are living. Face-to-face interview with 78 occupants revealed that they attached great importance to the level of satisfaction with their neighbourhoods. The most important factor associated with their neighbourhood satisfaction was privacy, which was a reflection of their previously living background.
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Review of the application of nanotechnology for sustainable construction materials

- Oke, Ayodeji, Aigbavboa, Clinton, Semenya, Kgothatso

Requisite skills for graduate success : perceptions of the Nigerian construction industry

- Aigbavboa, Clinton, Aliu, John

Recycling of construction and demolition waste (CDW) towards sustainable beneficial outcomes

- Agbenyeku, E. Emmanuel, Aigbavboa, Clinton

  • Authors: Agbenyeku, E. Emmanuel , Aigbavboa, Clinton
  • Date: 2015
  • Subjects: Landfill , Recycling , Construction and Demolition Waste
  • Language: English
  • Type: Conference proceedings
  • Identifier: http://hdl.handle.net/10210/72824 , uj:18333 , Citation: Agbenyeku, E.E. & Aigbavboa, C. 2015. Recycling of construction and demolition waste (CDW) towards sustainable beneficial outcomes.
  • Description: Abstract: Population growth, industrialization and infrastructure development have continued to result in large amounts of construction and demolition waste (CDW) been dumped in landfills. The various enormous construction, demolition, remodeling, restructuring, renovation and repairs on domestic and industrial buildings as well as projects on infrastructure growth generate vast amounts of CDW considered low risk but of high volume. In South Africa and other African countries, CDW often ends up in landfills for lack of feasible recycling and reuse options. Considering the quantity of CDW insistently generated, it is expected that these wastes are converted to wealth if appreciated as useful resource for energy recovery, recycling or reuse. The need for recycling and reuse alternatives have increased in recent years with pressing concerns on the impacts of landfill disposal of CDW on the environment and human health. Irrespective of growing concerns, it is clear that landfilling will remain the main waste management disposal system for CDW in the foreseeable future. Hence, the study pinpoints the importance of recycling and reusing CDW towards beneficial outcomes. CDW can be profitably harnessed if properly sorted, crushed and sieved using the cheapest appropriate technology possible for concrete works. If well established, recycling and reuse alternatives can be efficiently implemented by incorporation into concrete technology with keen eyes for low cost housing schemes for social benefits.
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Quality performance of infrastructure developments in Swaziland

- Oke, Ayodeji, Aigbavboa, Clinton, Dlamini, Ernest

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